i want my R8500 back in to my account

morning <br> i bought my car last year from mc carthy therefore they gave me the two years warranty from Bidvest warranty Luxi Cover ,now my car has problem with the sensors and apparently the bidvest cannot cover ,now i need my money back R8500,00 back to my account beacause what the use of paying for the warranty the money that i did not have but yet get nothing from it ,this is a robbing game is either they fix my car or they give me my money back ,please this is for wkk654gp 2007yaris t1